If it's been a good few years since you bought your headphones (DT-880 Pros here), you might've noticed that its headband has no padding left to speak of. If that's the case, you're going to be left wondering why you didn't think to buy this replacement part any sooner. With about a centimetre of fresh padding, your head's going to thank you.
INSTALLATION
With the left side of the headphone on your left, place the headband under the metal frame and fold the flap with male buttons up and over it away from you (the wire should be running between the frame and the flap). It's a tight fit, but I trust you have it from here...